493418089 has 2 divisors, whose sum is σ = 493418090. Its totient is φ = 493418088.

The previous prime is 493418053. The next prime is 493418111. The reversal of 493418089 is 980814394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324288064 + 169130025 = 18008^2 + 13005^2 .

It is a cyclic number.

It is not a de Polignac number, because 493418089 - 2¹⁷ = 493287017 is a prime.

It is a super-2 number, since 2×493418089² = 486922821104823842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (493418389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246709044 + 246709045.

It is an arithmetic number, because the mean of its divisors is an integer number (246709045).

Almost surely, 2^493418089 is an apocalyptic number.

It is an amenable number.

493418089 is a deficient number, since it is larger than the sum of its proper divisors (1).

493418089 is an equidigital number, since it uses as much as digits as its factorization.

493418089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 493418089 is about 22213.0162067199. The cubic root of 493418089 is about 790.2024204899.

The spelling of 493418089 in words is "four hundred ninety-three million, four hundred eighteen thousand, eighty-nine".